Adolph weber



' ra'rns NITE PArnr rrica.

HENRY W. ROOD,

OF SAME PLACE.

STRAlGHT-WAY-VALVE CASE.

QPECIPICATION forming part of Letters Patent No. 316,588, dated April28l, 1885.

Application filed November 26, 1884.

T 0 aZZ whom it may concern.-

Be it known that I, ADOLPH WEBER, of Detroit, in the county of Wayneand'State of Michigan, have invented new and useful Improvements inStraight-Way-Valve Cases; and I do hereby declare that the following isa full, clear, and exact description thereof, reference being had to theaccompanying drawing, which formsa part of this Specification.

This invention relates to certain new anduseful improvements in themanufacture of straight-way-valve cases; and the invention consists inthe peculiar combinations and the construction and arrangement of partshere inal'ter more particularly described, and then pointed out in theclaim.

In the accompanying drawing, which forms a part of this specification, astraight-way valve cage is shown in sectional perspective, in which Arepresents the cage proper, cast in iron, provided with the usual inletand outlet passages in line with and directly opposite each other, ofthe usual and known patterns. The valve-seats B are of brass. Thesevalve-seats consist of flattened brass rings of sufficient widthinserted at the inner ends of the inlet and outlet passages, betweenwhich the valve ordinarily employed is interposed to cut off the flow ofwater. In the process of casting, these rings having been previouslycast, they are inserted in the mold formed for casting the cage, in themanner Well known to molders; and in order to secure a perfect unitingof the iron with the brass, the outer edge face of the ring has formedtherein a groove, and there is formed in the outer flat face anothergroove, 1), and the iron entering in the process of casting each ofthese grooves, a perfect lock between the two metals is formed. Brassfusing at a less temperature than is required to melt iron has incooling a greater shrinkage than the iron hence any attempt to castbrass and iron together is futile, for the difference in shrinkagebetween the two metals would draw them apart and break (No model.)

the contact. By my process, the brass rings being cold, (and, as beforeremarked, brass fusing at a lower temperature than iron,) when the hotiron is poured into the mold and comes in contact with the brass ringsforming the seats, the contact of the molten iron with the brass has atendency to partially fuse the contact-face of such brass, and thereby aperfect juncture of the two metals is had, the brass being additionallysecured in place to the iron by the looking, as before described.

As it is necessary that the brass rings which form the valve-seats areproperly supported in their proper relation to each other and to thewater-ways of the case, I reserve the right to file another applicationupon the process of making the composite straight-wayvalve casedescribed in this application.

I am aware of the Patent No. 44,326, and make no claim to theconstruction shown therein as forming part of my invention. I attachimportance to the two grooves arranged at right angles to each other,for by this construotion the dovetails formed by the iron entering thesegrooves draw in opposite directions to each other when the metal shrinksin cooling, thereby more effectually holding the ring in contact withthe metal of the cage. By the previous constructions this point ofcontact almost invariably leaks, whereas mine is always tight. Thisresult cannot be obtained from a single centrally-located dovetail shownin the patent above referred to.

What I claim as my invention is A brass ring provided upon its outeredge face with a groove and upon its outer flat face with another groovestanding at right angles, or nearly so, to the first-nan1ed groove, incombination with a cast-iron valve-case, substan, tially as set forth.

ADOLPH WVEBER.

